![]() The adjusting mechanism was protected by a curved guard. ![]() The adjustment was performed by the blade tilt adjusting-screws, at the front of each tilting brace. The Tiltdozer blade can easily be tilted. Its design combined features of the bulldozer and the angledozer. By releasing the brake, the blade will be lowered. By engaging the clutch of the power control unit, the blade will be raised. The bulldozer required only one cable drum, and when it is operated by a rear-mounted R7 PCU, the spare drum may be used to operate other equipment. The A7 Tiltdozer could be operated by either LeTourneau front or rear mounted PCUs. LeTourneau A7 Tiltdozer: the A7 Tiltdozer consisted mainly of the steel blade or "bowl" across the front of the tractor the pushbeams, that supported the bowl in front of the tractor the trunnion brackets, on which the rear of the pushbeams pivots and the front and rear A-frames and the ridgebeam on which rotated the sheaves over which the cable from the PCU travels to raise and lower the blade.Moving these control levers, the operater can spool or unspool the control cables on or off the cable drums, thereby operating the various working parts of the equipment being operated by the PCU. Two control levers (one for each drum) extend up behind the tractor seat and are within easy reach for the operator. Control cables (wire ropes) extend from the cable drums to the equipment that is being operated by the PCU. A take-off shaft (spline-shaft) connects the PCU with the tractor upper transmission-shaft, and by the tractor engine. LeTourneau R7 Power Control Unit: the R7 Power Control Unit (PCU) was a double-drum unit mounted on the rear of the steering-clutch case of Caterpillar D7 tractors to control a wide range of equipment like dozers, scrapers, rooters, cranes etc.LeTourneau FTD7 PCU to operate the LeTourneau WCK7 AngledozerĪnd a LeTourneau R7 PCU to operate any towed equipment. Caterpillar D7 of a Naval Construction Battalion (Seabees) with
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |